Home / 452,927.20-679,455.60-137,408.80

Finding the Fourth Proportional to 452,927.20, 679,455.60 and 137,408.80

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Solution

The fourth proportional to 452,927.20, 679,455.60 and 137,408.80 is: 206,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,927.20 : 679,455.60 = 137,408.80 : x
  2. Step 2: Convert to fraction form
    452,927.20/679,455.60 = 137,408.80/x
  3. Step 3: Cross multiply
    452,927.20x = 679,455.60 × 137,408.80
  4. Step 4: Simplify right side
    452,927.20x = 93,363,178,649.28
  5. Step 5: Solve for x
    x = 93,363,178,649.28/452,927.20
  6. Step 6: Final answer
    x = 206,132.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.